From filaments to light-sheets: tailoring the spectrum of fiber Bragg gratings with femtosecond lasers

Polina Zavyalova; Abdullah Rahnama; Ehsan Alimohammadian; JianZhao Li; Suresh Sivanandam; Peter R. Herman

doi:10.1117/12.2585179

30 March 2021 From filaments to light-sheets: tailoring the spectrum of fiber Bragg gratings with femtosecond lasers

Polina Zavyalova, Abdullah Rahnama, Ehsan Alimohammadian, JianZhao Li, Suresh Sivanandam, Peter R. Herman

Proceedings Volume 11676, Frontiers in Ultrafast Optics: Biomedical, Scientific, and Industrial Applications XXI; 116760X (2021) https://doi.org/10.1117/12.2585179
Event: SPIE LASE, 2021, Online Only

Abstract

Femtosecond laser light has been shaped with a spatial light modulator (SLM) to generate optically thin, aberration-free sheets of uniform intensity for inscription of fiber Bragg gratings (FBGs) inside the core of SMF-28 telecommunication fiber. The combination of flexible beam shaping and sheet-by-sheet writing offers facile means in controlling the coupling to cladding or radiation modes while facilitating spectral tuning flexibility that is not available with interference-based techniques. Spectral responses of uniform first order FBGs fabricated with single-pulse exposures are presented.

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Polina Zavyalova, Abdullah Rahnama, Ehsan Alimohammadian, JianZhao Li, Suresh Sivanandam, and Peter R. Herman "From filaments to light-sheets: tailoring the spectrum of fiber Bragg gratings with femtosecond lasers", Proc. SPIE 11676, Frontiers in Ultrafast Optics: Biomedical, Scientific, and Industrial Applications XXI, 116760X (30 March 2021); https://doi.org/10.1117/12.2585179

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